from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The formation of one or more rings in a chemical compound, especially a hydrocarbon.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry The process of
cyclizing, of becoming or causing to become aromatic.
- noun chemistry Any
reactionthat results in the formationof a ring.
from Wiktionary, Creative Commons Attribution/Share-Alike License
While environmentally friendly or so-called "green" chemistry has become all the rage in the chemical community, no human chemist can yet match what a single jellyfish gene directs: 238 ordered condensations + 1 cyclization + 1 oxidation, all done in a few minutes in aerated water with no protecting groups, only one slightly toxic byproduct, and essentially 100% yield of an extremely useful product that literally glows green.
The fluorescent moiety is an imidazolone ring structure that is formed by the posttranslational cyclization of a tripeptide, ser65-tyr66-gly67.
In diene synthesis the two chains attach themselves to four or two carbon atoms to form a ring, which thus contains six atoms; this number is particularly favourable to cyclization.
The problem is known as strand cyclization, but Hud and his team discovered that using a molecule that binds between neighboring base pairs of DNA, known as an intercalator, can bring short pieces of DNA and RNA together in a manner that helps them create much longer molecules.
The firm explained that hydrolysis, oxidation, polymerization, isomerization and cyclization are common chemical reactions in frying oil that produce both volatile and nonvolatile compounds.
Creatine Magna Power - A molecule that protects the creatine from cyclization (providing more active creatine), as well as increasing the co-absorbtion of magnesium.
Here we show that circular proteins can be made reversibly with excellent efficiency by means of a sortase-catalyzed cyclization reaction, requiring only minimal modification of
The first step (hydroxylation) is separated from the latter two (oxidative cyclization and desaturation) by the action of EC
Thus cyclic diynes of 8-10 member size as well as aza-enediynes have been shown to efficiently undergo Bergman cyclization under the induction of light, metal ions or elevated temperature due to their low activation barrier
Prins cyclization, which got me out of a tight spot in my first year of grad school (I've been grateful ever since).